Accession Number:

ADA183597

Title:

The Photochemistry of Cyano and Dicyanoacetylene at 193 nm.

Descriptive Note:

Technical rept. Sep 1986-Sep 1987

Corporate Author:

HOWARD UNIV WASHINGTON DC DEPT OF CHEMISTRY

Personal Author(s):

• Halpern, J. B.
• Petway, L.
• Lu, R.
• Jackson, W. M.
• McCrary, V. R.
• Nottingham, W.

Report Date:

1987-07-28

Pagination or Media Count:

42.0

Abstract:

This paper reports on a study of the photochemistry of cyano and dicyanoacetylene at 193 nm. In particular, those photolysis channel have been characterized which lead to the production of excited state fragments and CN in the ground state. In addition to the direct production of CN and C2H, there is a second channel leading to C3N and H atoms. The results also show that at high laser intensity the HC3N dissociates by two photon photolysis and that the C3N undergoes secondary photolysis. Keywords Photodissociation, cyanoacetylenes, Photochemistry.

Descriptors:

• *ACETYLENES
• *PHOTOCHEMICAL REACTIONS
• ARGON LASERS
• CHANNELS
• CYANOGEN
• EXOTHERMIC REACTIONS
• FLUORESCENCE
• GROUND STATE
• HIGH RATE
• INTENSITY
• LASER INDUCED FLUORESCENCE
• LASERS
• NITRILES
• NITROGEN COMPOUNDS
• PHOTODISSOCIATION
• PHOTOLYSIS
• PHOTONS
• POLYATOMIC MOLECULES
• PRODUCTION
• SECONDARY
• THERMOCHEMISTRY
• ULTRAVIOLET SPECTROSCOPY

Subject Categories:

• Organic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE